High-frequency line-to-waveguide transducer
On one surface of a dielectric substrate 1 having a thickness of one quarter of a signal wavelength, a ground electrode 3, and a strip line 2, one end thereof being connected to a high-frequency element 7 via a wire 8, are formed. On the opposite surface thereof, which opposes a waveguide 9, a groun...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
04.06.2003
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | On one surface of a dielectric substrate 1 having a thickness of one quarter of a signal wavelength, a ground electrode 3, and a strip line 2, one end thereof being connected to a high-frequency element 7 via a wire 8, are formed. On the opposite surface thereof, which opposes a waveguide 9, a ground electrode 4 is formed, a first electrode opening 5a having a predetermined length and width is formed, opposite to a proximity of an open end of the strip line 2, and a second electrode opening 5b is formed so that a center line b of a width thereof is separated outward by one quarter of the signal wavelength from a conductor wall a of the waveguide 9. Furthermore, via holes 6 having a length of one quarter of the signal wavelength, electrically connecting the ground electrodes on either surface, are formed. The waveguide 9 is disposed in proximity to the dielectric substrates 1 so that the center of the first electrode opening 5a coincides with the centre of the waveguide 9. In a further embodiment (fig. 4), a second substrate (1b) is formed on the second ground electrode (4a), and a third ground electrode (4b) is formed on the second substrate (1b). The electrode openings (5b, 5c) are formed on the third ground electrode 4b. In a final embodiment, the transducer is applied to a communication apparatus. |
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Bibliography: | Application Number: GB20020020588 |